.pre {
  margin: 12px 0;
  padding: 12px 20px;
  background: #fff;
  box-shadow: 0 1px 2px -2px rgba(0, 0, 0, 0.16),
    0 3px 6px 0 rgba(0, 0, 0, 0.12), 0 5px 12px 4px rgba(0, 0, 0, 0.09);
}
